英文:
Docker - Error: dockerfile parse error on line 3: unknown instruction: export
问题
Error: dockerfile parse error on line 3: unknown instruction: export (did you mean expose?)
错误：在第3行的Dockerfile中发生dockerfile解析错误：未知指令：export（您是不是想要写成expose？）
The Dockerfile looks like this:
Dockerfile如下：
### 构建器（用于前端） ###export DOCKER_BUILDKIT=1docker build -t myimage .FROM node:19.3-buster-slim# Switch to the node_modules install directory (if -g is used)# So NODE_MODULES env var is set correctly# 切换到node_modules安装目录（如果使用-g选项）# 以确保NODE_MODULES环境变量被正确设置WORKDIR /usr/local/lib/node_modulesCOPY frontend/node-requirements.txt ./node-requirements.txtRUN echo "unsafe-perm=true" > .npmrcRUN cat node-requirements.txt | xargs npm install -gCOPY --chmod=0755 .docker/builder/entrypoint.sh /usr/local/bin/entrypoint.shCOPY frontend /appVOLUME /appENTRYPOINT ["entrypoint.sh"]```Does anyone have any idea on what could be causing this error? Any help would be greatly appreciated. Thank you in advance!有人知道是什么原因导致了这个错误吗？任何帮助将不胜感激。提前谢谢！<details><summary>英文:</summary>Okay, after a complete new install of Docker. I am getting an error when trying to do sudo docker-compose build on a Dockerfile.Error: dockerfile parse error on line 3: unknown instruction: export (did you mean expose?)
docker-compose build on the Dockerfile. The error is
dockerfile parse error on line 3: unknown instruction: export (did you mean expose?)
ERROR: Service 'builder' failed to build : Build failed
The Dockerfile looks like this:
Builder (for Frontend)
export DOCKER_BUILDKIT=1
docker build -t myimage .
FROM node:19.3-buster-slim
Switch to the node_modules install directory (if -g is used)
So NODE_MODULES env var is set correctly
WORKDIR /usr/local/lib/node_modules
COPY frontend/node-requirements.txt ./node-requirements.txt
RUN echo "unsafe-perm=true" > .npmrc
RUN cat node-requirements.txt | xargs npm install -g
COPY --chmod=0755 .docker/builder/entrypoint.sh /usr/local/bin/entrypoint.sh
COPY frontend /app
VOLUME /app
ENTRYPOINT ["entrypoint.sh"]
Does anyone have any idea on what could be causing this error? Any help would be greatly appreciated. Thank you in advance!</details># 答案1**得分**: 1以下是翻译好的部分：Commands to run in terminal:```bash$ export DOCKER_BUILDKIT=1$ docker build -t myimage .
Dockerfile Content:
FROM node:19.3-buster-slim# Switch to the node_modules install directory (if -g is used)# So NODE_MODULES env var is set correctlyWORKDIR /usr/local/lib/node_modulesCOPY frontend/node-requirements.txt ./node-requirements.txtRUN echo "unsafe-perm=true" > .npmrcRUN cat node-requirements.txt | xargs npm install -gCOPY --chmod=0755 .docker/builder/entrypoint.sh /usr/local/bin/entrypoint.shCOPY frontend /appVOLUME /appENTRYPOINT ["entrypoint.sh"]
英文:
First two commands are bash commands, not part of Dockerfile.
Commands to run in terminal:
$ export DOCKER_BUILDKIT=1$ docker build -t myimage .
Dockerfile Content:
FROM node:19.3-buster-slim# Switch to the node_modules install directory (if -g is used)# So NODE_MODULES env var is set correctlyWORKDIR /usr/local/lib/node_modulesCOPY frontend/node-requirements.txt ./node-requirements.txtRUN echo "unsafe-perm=true" > .npmrcRUN cat node-requirements.txt | xargs npm install -gCOPY --chmod=0755 .docker/builder/entrypoint.sh /usr/local/bin/entrypoint.shCOPY frontend /appVOLUME /appENTRYPOINT ["entrypoint.sh"]
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